Boundary Atlas

ZIP code 53178: Sullivan, WI

ZIP code 53178 is in Sullivan (24% of residents) and Rome (16%), in Jefferson County, Wisconsin. 60% of its residents live outside city limits. It is in Wisconsin's 5th congressional district. Its state senate district is State Senate District 33; its state house district is Assembly District 97.

2,703residents (2020 Census)
31.9 sq miland area
2cities and towns
1congressional district
5voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Sullivan24%
Rome16%

CountyShare of ZIP residents
Jefferson County100%

Town or county subdivisionShare of ZIP residents
Sullivan town38%
Concord town38%
Sullivan village24%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 5th congressional district (WI-05)100%

Members of Congress

OfficeMemberContact
U.S. Representative (WI-05)Scott Fitzgerald (R)202-225-5101
U.S. SenatorRon Johnson (R)202-224-5323 · contact form
U.S. SenatorTammy Baldwin (D)202-224-5653 · contact form

Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).

State legislative districts

State senate districtShare of ZIP residents
State Senate District 33100%

State house districtShare of ZIP residents
Assembly District 97100%

Voting precincts

5 voting precincts overlap ZIP 53178. Map them, with each precinct's share of the ZIP's residents.

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ZIP 53178 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.